23 Oct 2026 15:48:27 UTC
Keycloak-services: keycloak-services: client not-before revocation ignored when realm not-before is older but nonzero
cve-program · CVE-2026-18218 · Published
CVE-2026-18218
Red Hat build of Keycloak 26.6 · Vulnerability
CVSS 3.1 4.2 MEDIUMCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-18218
PublishedA flaw was found in the TokenManager component of the Keycloak identity management service. When an administrator attempts to revoke tokens for a specific application (client) using a "not-before" policy, the revocation may be silently ignored if the overall security realm already has an older, non-zero revocation policy in place. This issue can allow previously issued tokens to remain valid for refreshing sessions and accessing user information even after an administrator has attempted to invalidate them. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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